PowerShell Scripts vs. a Dedicated UKG to AD Sync Tool
Plenty of IT teams start with a script to sync UKG and Active Directory. Here's an honest look at where scripts work, where they break, and when a dedicated tool makes more sense.
When IT teams first look at syncing UKG with Active Directory, the instinct is often to build it. You have PowerShell, the UKG API is documented, and a first version can come together in a few days.
Scripts can be a good fit. They can also become one of the riskiest pieces of software in your environment. Here’s how to tell which one you have.
When a script is enough
You only need to create accounts, not update or disable them
Your company is small and hiring is infrequent
Someone owns the script and has time to maintain it
Your auditors don’t ask for detailed change logs
Where scripts start to struggle
The first version usually handles new hires. The trouble comes with everything else.
Movers and leavers. Updating attributes, moving OUs, adjusting groups and disabling accounts safely is far more complex than creating them.
Edge cases. Rehires, name changes, duplicate names, contractors, multiple companies and incomplete records all need special handling.
API changes. When UKG or Microsoft updates an API or authentication method, the script stops working until someone fixes it.
One person knows how it works. When they leave, nobody else understands the logic.
No visibility. Scripts often fail silently. You find out from a new hire who can’t sign in.
Security. Scripts often run with broad permissions and keep credentials in plain text or in a scheduled task.
The real cost of building
Writing the script is the smallest part of the cost. Testing, documentation, monitoring, fixing breaks and answering audit requests add up over the years. When you compare building with buying, count the maintenance, not just the first version.
What a dedicated tool gives you
Every lifecycle event covered, including job changes and terminations, out of the box
Rules instead of code. Expressions & Conditions handle exceptions with simple WHEN and THEN logic, and you can preview the result before going live
Logs and notifications for every change, so you always know what happened
Security you can show your auditors, including encrypted credentials, least-privilege service accounts and an independent SOC 2 Type 2 audit
Support and updates when UKG or Microsoft changes something
Making the decision
If your script works, is well maintained and covers terminations, it may be fine for now. If it only handles new hires, depends on one person, or you’ve ever found an active account for someone who left, it’s time to look at a tool built for the job.
Connect to AD is designed for UKG and trusted by more than 500 UKG customers. Try it for free alongside your current script, or book a demo to compare.
